body {
    background-color: #f8f9fa;
}

.card {
    margin-bottom: 20px;
    transition: transform 0.2s;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 10px rgba(0, 0, 0, 0.15);
}

.chart-container {
    position: relative;
    min-height: 200px;
}

.navbar {
    margin-bottom: 20px;
}

.spinner-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.tab-content {
    padding: 20px;
    border-left: 1px solid #dee2e6;
    border-right: 1px solid #dee2e6;
    border-bottom: 1px solid #dee2e6;
    border-radius: 0 0 5px 5px;
}

.date-picker-container {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.login-container {
    max-width: 400px;
    margin: 0 auto;
    padding-top: 50px;
}

.alert-emergency {
    animation: blink 1s linear infinite;
}

@keyframes blink {
    50% { opacity: 0.5; }
}